/* Software License Agreement
 * 
 *     Copyright(C) 1994-2019 David Lindauer, (LADSoft)
 * 
 *     This file is part of the Orange C Compiler package.
 * 
 *     The Orange C Compiler package is free software: you can redistribute it and/or modify
 *     it under the terms of the GNU General Public License as published by
 *     the Free Software Foundation, either version 3 of the License, or
 *     (at your option) any later version.
 * 
 *     The Orange C Compiler package is distributed in the hope that it will be useful,
 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *     GNU General Public License for more details.
 * 
 *     You should have received a copy of the GNU General Public License
 *     along with Orange C.  If not, see <http://www.gnu.org/licenses/>.
 * 
 *     As a special exception, if other files instantiate templates or
 *     use macros or inline functions from this file, or you compile
 *     this file and link it with other works to produce a work based
 *     on this file, this file does not by itself cause the resulting
 *     work to be covered by the GNU General Public License. However
 *     the source code for this file must still be made available in
 *     accordance with section (3) of the GNU General Public License.
 *     
 *     This exception does not invalidate any other reasons why a work
 *     based on this file might be covered by the GNU General Public
 *     License.
 * 
 *     contact information:
 *         email: TouchStone222@runbox.com <David Lindauer>
 * 
 */

#include <stdarg.h>
#include <time.h>
#include <wchar.h>
#include <locale.h>
#include <errno.h>
#include "libp.h"

int _RTL_FUNC vfwprintf(FILE *restrict stream, const wchar_t *restrict format, 
        va_list arglist)
{
	int written=0;
	int i = 0;
	if (stream->token != FILTOK) {
		errno = _dos_errno = ENOENT;
		return 0;
	}
        if (stream->flags & _F_BUFFEREDSTRING)
        {
            if (stream->extended->orient == __or_narrow) {
                errno = EINVAL;
                return 0;
            }
            stream->extended->orient = __or_wide;
        }
        else
        {
            if (stream->extended->orient == __or_wide) {
                errno = EINVAL;
                return 0;
            }
            stream->extended->orient = __or_narrow;
        }
	while (*format) {
		short *p = wcschr(format, '%');
		if (!p)
			p = format + wcslen(format);
		if (p != format)
		{
                    for ( ; format < p; format ++, written++)
                    {
                        if (stream->flags & _F_BUFFEREDSTRING)
                        {
                            fputwc(*format, stream);
                        }
                        else
                        {
                            char buf[32];
                            int n = wcrtomb(buf, *format, (mbstate_t*)stream->extended->mbstate);
                            if (n > 0)
                            {
                                buf[n] = 0;
                                if (fputs(buf, stream) < 0)
                                    return EOF;
                            }
                        }
                    }
                }
		if (*format == '%') {
                    if  (*(format+1)) {
                        format = __wonetostr(stream, format+1,((char **)arglist+i),&i, &written);
                    }
                    else
                    {
                        format++;
                    }
               }
	}
	return written;
}
int _RTL_FUNC fwprintf(FILE *restrict stream, const wchar_t *restrict format, ...)
{
	return vfwprintf(stream,format,((char *)&format+sizeof(wchar_t *)));
}
